import sys

read = sys.stdin.read
readline = sys.stdin.readline
readlines = sys.stdin.readlines
sys.setrecursionlimit(10 ** 9)
INF = 1 << 60
MOD = 1000000007


def main():
    X = int(readline())

    ans = 10 - X // 200

    print(ans)

    return


if __name__ == '__main__':
    main() import sys sys read = sys.stdin.read read sys.stdin.read sys.stdin sys stdin read readline = sys.stdin.readline readline sys.stdin.readline sys.stdin sys stdin readline readlines = sys.stdin.readlines readlines sys.stdin.readlines sys.stdin sys stdin readlines sys.setrecursionlimit(10 ** 9) sys.setrecursionlimit sys setrecursionlimit 10 ** 9 10 9 INF = 1 << 60 INF 1 << 60 1 60 MOD = 1000000007 MOD 1000000007 def main():
    X = int(readline())

    ans = 10 - X // 200

    print(ans)

    return main X = int(readline()) X int(readline()) int readline() readline ans = 10 - X // 200 ans 10 - X // 200 10 X // 200 X 200 print(ans) print ans return if __name__ == '__main__':
    main() __name__ == '__main__' __name__ '__main__' main() main def main():
    X = int(readline())

    ans = 10 - X // 200

    print(ans)

    return def main():
    X = int(readline())

    ans = 10 - X // 200

    print(ans)

    return main MOD = 1000000007 1000000007 MOD INF = 1 << 60 1 << 60 INF read = sys.stdin.read sys.stdin.read read readline = sys.stdin.readline sys.stdin.readline readline readlines = sys.stdin.readlines sys.stdin.readlines readlines
import sys

read = sys.stdin.read
readline = sys.stdin.readline
readlines = sys.stdin.readlines
sys.setrecursionlimit(10 ** 9)
INF = 1 << 60
MOD = 1000000007


def main():
    X = int(readline())

    ans = 10 - X // 200

    print(ans)

    return


if __name__ == '__main__':
    main()
